The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 14, 1995
Filed:
Jan. 28, 1994
Applicant:
Inventor:
Kevin A Baxter, Billerica, MA (US);
Assignee:
Polaroid Corp., Cambridge, MA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
2281231 ; 228219 ;
Abstract
A novel method and apparatus improves the physical and electrical soldering bond between two electronic components by fluctuating the pressure of a non-oxidizing gas in a chamber which houses the two electronic components throughout a period when the solder has been made molten. This results in the solder effectively filling all crevices and grooves present on the surfaces being soldered. The method is particularly advantageous for soldering a ridge wave-guide laser diode P-side down to a heat sink to improve power capability, longevity and performance of the laser diode.